/* * Copyright (c) 2007 Apple Inc. All Rights Reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ // // reqreader - Requirement language (exprOp) reader/scanner // #ifndef _H_REQREADER #define _H_REQREADER #include <security_codesigning/requirement.h> #include <Security/SecCertificate.h> namespace Security { namespace CodeSigning { // // The Reader class provides structured access to a opExpr-type code requirement. // class Requirement::Reader { public: Reader(const Requirement *req); const Requirement *requirement() const { return mReq; } template <class T> T get(); void getData(const void *&data, size_t &length); std::string getString(); const unsigned char *getHash(); const unsigned char *getSHA1(); template <class T> void getData(T *&data, size_t &length) { return getData(reinterpret_cast<const void *&>(data), length); } protected: void checkSize(size_t length) { if (mPC + length > mReq->length()) MacOSError::throwMe(errSecCSReqInvalid); } void skip(size_t length); Offset pc() const { return mPC; } bool atEnd() const { return mPC >= mReq->length(); } private: const Requirement * const mReq; Offset mPC; }; template <class T> T Requirement::Reader::get() { checkSize(sizeof(T)); const Endian<const T> *value = mReq->at<Endian<const T> >(mPC); mPC += sizeof(T); return *value; } } // CodeSigning } // Security #endif //_H_REQREADER